pitch blockn.

Brit.

/ˈpɪtʃ blɒk/, U.S.

/ˈpɪtʃ ˌblɑk/

Origin: Formed within English, by compounding. Etymons: pitch n.¹, block n.

Etymology: < pitch n.¹ + block n.

In metalworking: a block with a slightly yielding surface made from a mixture including pitch, on which metal objects are placed during engraving or embossing.Listed s.v. pitch n.² in N.E.D. (1907), but this would seem to be a misinterpretation (cf. quot. 1906).

ΘΚΠ

the world > space > relative position > support > [noun] > that which supports > supporting blocks > inclinable

pitch block1875

1875 E. H. Knight Amer. Mech. Dict. III. 1719/2 Pitch-block, a cushioned seat of a concave hemispherical form, in which sheet-metal is held while being chased.

1906 Elem. School Teacher 7 80 If the pattern is to be embossed on the tray, a pitch block is used. This is made by melting together equal parts, by weight, of black pitch and plaster of Paris with a small lump of mutton tallow.

1948 Man 48 39/1 When the metal is resting upon some yielding support, such as a board or a pitch block, the tracer produces a groove with a slight ridge driven up on each side..and a definite ridge upon the underside.

1998 Jewellery News Asia (Nexis) 1 Dec. De Vroomen specializes in the ancient goldsmith's craft of repoussé—beating designs and textures from a sheet of gold against a pitch block.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	pitch block
释义	pitch blockn. Brit. /ˈpɪtʃ blɒk/, U.S. /ˈpɪtʃ ˌblɑk/ Origin: Formed within English, by compounding. Etymons: pitch n.¹, block n. Etymology: < pitch n.¹ + block n. In metalworking: a block with a slightly yielding surface made from a mixture including pitch, on which metal objects are placed during engraving or embossing.Listed s.v. pitch n.² in N.E.D. (1907), but this would seem to be a misinterpretation (cf. quot. 1906). ΘΚΠ the world > space > relative position > support > [noun] > that which supports > supporting blocks > inclinable pitch block1875 1875 E. H. Knight Amer. Mech. Dict. III. 1719/2 Pitch-block, a cushioned seat of a concave hemispherical form, in which sheet-metal is held while being chased. 1906 Elem. School Teacher 7 80 If the pattern is to be embossed on the tray, a pitch block is used. This is made by melting together equal parts, by weight, of black pitch and plaster of Paris with a small lump of mutton tallow. 1948 Man 48 39/1 When the metal is resting upon some yielding support, such as a board or a pitch block, the tracer produces a groove with a slight ridge driven up on each side..and a definite ridge upon the underside. 1998 Jewellery News Asia (Nexis) 1 Dec. De Vroomen specializes in the ancient goldsmith's craft of repoussé—beating designs and textures from a sheet of gold against a pitch block. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.1875
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